| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1041721 |
2024-08-02T07:24:09 Z |
abczz |
Chorus (JOI23_chorus) |
C++17 |
|
7000 ms |
860 KB |
#include <iostream>
#include <algorithm>
#include <deque>
#include <vector>
#include <array>
#define ll long long
using namespace std;
ll n, k, dp[2][5000];
vector <ll> A, B, nxA, ps;
string S;
ll C(ll l, ll r) {
if (nxA[l] > r) return 0;
ll nx = max(l, nxA[l]), cnt = r-nx+1, cnt2 = max(0LL, l-nxA[l]);
return ps[r]-(nx ? ps[nx-1] : 0)-cnt*B[l]-cnt*(cnt-1)/2-(r-l+1)*cnt2;
}
void solve(ll l, ll r, ll ql, ll qr) {
ll mid = (l+r)/2;
ll opt = 1e18, optid = -1, tmp;
for (int i=ql; i<mid; ++i) {
tmp = dp[0][i] + C(i+1, mid);
if (opt > tmp) {
opt = tmp;
optid = i;
}
}
dp[1][mid] = opt;
if (l < mid) solve(l, mid-1, ql, optid);
if (mid < r) solve(mid+1, r, optid, qr);
}
int main() {
cin.tie(0);
ios::sync_with_stdio(0);
cin >> n >> k >> S;
for (int i=0; i<2*n; ++i) {
if (S[i] == 'A') {
ps.push_back((ps.empty() ? 0 : ps.back()) + i);
A.push_back(i);
}
else {
B.push_back(i);
nxA.push_back(A.size());
}
}
for (int i=0; i<n; ++i) dp[0][i] = C(0, i);
for (int x=1; x<k; ++x) {
solve(0, n-1, 0, n-1);
swap(dp[0], dp[1]);
}
cout << dp[0][n-1] << '\n';
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
3 ms |
348 KB |
Output is correct |
| 19 |
Correct |
14 ms |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| 21 |
Correct |
0 ms |
348 KB |
Output is correct |
| 22 |
Correct |
8 ms |
348 KB |
Output is correct |
| 23 |
Correct |
14 ms |
348 KB |
Output is correct |
| 24 |
Correct |
1 ms |
348 KB |
Output is correct |
| 25 |
Correct |
7 ms |
564 KB |
Output is correct |
| 26 |
Correct |
6 ms |
348 KB |
Output is correct |
| 27 |
Correct |
4 ms |
556 KB |
Output is correct |
| 28 |
Correct |
3 ms |
348 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
3 ms |
348 KB |
Output is correct |
| 19 |
Correct |
14 ms |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| 21 |
Correct |
0 ms |
348 KB |
Output is correct |
| 22 |
Correct |
8 ms |
348 KB |
Output is correct |
| 23 |
Correct |
14 ms |
348 KB |
Output is correct |
| 24 |
Correct |
1 ms |
348 KB |
Output is correct |
| 25 |
Correct |
7 ms |
564 KB |
Output is correct |
| 26 |
Correct |
6 ms |
348 KB |
Output is correct |
| 27 |
Correct |
4 ms |
556 KB |
Output is correct |
| 28 |
Correct |
3 ms |
348 KB |
Output is correct |
| 29 |
Correct |
543 ms |
808 KB |
Output is correct |
| 30 |
Correct |
3134 ms |
856 KB |
Output is correct |
| 31 |
Correct |
943 ms |
860 KB |
Output is correct |
| 32 |
Correct |
1 ms |
604 KB |
Output is correct |
| 33 |
Correct |
31 ms |
840 KB |
Output is correct |
| 34 |
Correct |
822 ms |
836 KB |
Output is correct |
| 35 |
Correct |
821 ms |
828 KB |
Output is correct |
| 36 |
Correct |
91 ms |
860 KB |
Output is correct |
| 37 |
Correct |
464 ms |
856 KB |
Output is correct |
| 38 |
Correct |
717 ms |
856 KB |
Output is correct |
| 39 |
Correct |
548 ms |
856 KB |
Output is correct |
| 40 |
Correct |
388 ms |
856 KB |
Output is correct |
| 41 |
Correct |
406 ms |
860 KB |
Output is correct |
| 42 |
Execution timed out |
7072 ms |
604 KB |
Time limit exceeded |
| 43 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
3 ms |
348 KB |
Output is correct |
| 19 |
Correct |
14 ms |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| 21 |
Correct |
0 ms |
348 KB |
Output is correct |
| 22 |
Correct |
8 ms |
348 KB |
Output is correct |
| 23 |
Correct |
14 ms |
348 KB |
Output is correct |
| 24 |
Correct |
1 ms |
348 KB |
Output is correct |
| 25 |
Correct |
7 ms |
564 KB |
Output is correct |
| 26 |
Correct |
6 ms |
348 KB |
Output is correct |
| 27 |
Correct |
4 ms |
556 KB |
Output is correct |
| 28 |
Correct |
3 ms |
348 KB |
Output is correct |
| 29 |
Correct |
543 ms |
808 KB |
Output is correct |
| 30 |
Correct |
3134 ms |
856 KB |
Output is correct |
| 31 |
Correct |
943 ms |
860 KB |
Output is correct |
| 32 |
Correct |
1 ms |
604 KB |
Output is correct |
| 33 |
Correct |
31 ms |
840 KB |
Output is correct |
| 34 |
Correct |
822 ms |
836 KB |
Output is correct |
| 35 |
Correct |
821 ms |
828 KB |
Output is correct |
| 36 |
Correct |
91 ms |
860 KB |
Output is correct |
| 37 |
Correct |
464 ms |
856 KB |
Output is correct |
| 38 |
Correct |
717 ms |
856 KB |
Output is correct |
| 39 |
Correct |
548 ms |
856 KB |
Output is correct |
| 40 |
Correct |
388 ms |
856 KB |
Output is correct |
| 41 |
Correct |
406 ms |
860 KB |
Output is correct |
| 42 |
Execution timed out |
7072 ms |
604 KB |
Time limit exceeded |
| 43 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
3 ms |
348 KB |
Output is correct |
| 19 |
Correct |
14 ms |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| 21 |
Correct |
0 ms |
348 KB |
Output is correct |
| 22 |
Correct |
8 ms |
348 KB |
Output is correct |
| 23 |
Correct |
14 ms |
348 KB |
Output is correct |
| 24 |
Correct |
1 ms |
348 KB |
Output is correct |
| 25 |
Correct |
7 ms |
564 KB |
Output is correct |
| 26 |
Correct |
6 ms |
348 KB |
Output is correct |
| 27 |
Correct |
4 ms |
556 KB |
Output is correct |
| 28 |
Correct |
3 ms |
348 KB |
Output is correct |
| 29 |
Correct |
543 ms |
808 KB |
Output is correct |
| 30 |
Correct |
3134 ms |
856 KB |
Output is correct |
| 31 |
Correct |
943 ms |
860 KB |
Output is correct |
| 32 |
Correct |
1 ms |
604 KB |
Output is correct |
| 33 |
Correct |
31 ms |
840 KB |
Output is correct |
| 34 |
Correct |
822 ms |
836 KB |
Output is correct |
| 35 |
Correct |
821 ms |
828 KB |
Output is correct |
| 36 |
Correct |
91 ms |
860 KB |
Output is correct |
| 37 |
Correct |
464 ms |
856 KB |
Output is correct |
| 38 |
Correct |
717 ms |
856 KB |
Output is correct |
| 39 |
Correct |
548 ms |
856 KB |
Output is correct |
| 40 |
Correct |
388 ms |
856 KB |
Output is correct |
| 41 |
Correct |
406 ms |
860 KB |
Output is correct |
| 42 |
Execution timed out |
7072 ms |
604 KB |
Time limit exceeded |
| 43 |
Halted |
0 ms |
0 KB |
- |
